149509828 has 24 divisors (see below), whose sum is σ = 282105152. Its totient is φ = 68922144.

The previous prime is 149509817. The next prime is 149509837. The reversal of 149509828 is 828905941.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74251 + ... + 76237.

Almost surely, 2^149509828 is an apocalyptic number.

It is an amenable number.

149509828 is a deficient number, since it is larger than the sum of its proper divisors (132595324).

149509828 is a wasteful number, since it uses less digits than its factorization.

149509828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3451 (or 3449 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 149509828 is about 12227.4211508396. The cubic root of 149509828 is about 530.7498913758.

The spelling of 149509828 in words is "one hundred forty-nine million, five hundred nine thousand, eight hundred twenty-eight".